The first priority of CambridgeSoft's Technical Support is to help every business, organization, and individual to be more successful with CambridgeSoft products. Whether you represent a large business, home user, developer, or someone in between-this site is designed to help you find the answers you're looking for. If you are unable to find what you need, feel free to contact technical support for further assistance.
If you have access to MOPAC through a recent copy of Chem3D or ChemBio3D, you may need to upgrade your copy of MOPAC.
Mac and Windows updates for 11.0 users are now available for download on the Support Downloads page. The Mac release provides MacOS 10.5 co...